yes basically there are exceptions but your looking at 3yrs i think, something you need to verify Fred b4 you do anything. i might be wrong but i don't think so.
if it is 3 yrs and you still want them at a Uk uni, might be a good idea to get them back here for A levels (6 form you might not have to pay not sure, but at a college you might - same rules ?)
and get them to take a yr out in the uk, and then apply for uni at home fees ..
i'm not 100% sure, but you need to look into b4 you do anything..